Karcher HDS 2000 - Manual (Page 15)

HDS 2000 Super
28
GB 7. Troubleshooting
7.2 Indicator lights
•••••
Indicator light for fuel tank lights up
– Refill with fuel.
– Check that the fuel level sensor is
functioning correctly.
•••••
Indicator light for liquid softener lights up
– Refill with RM 110 liquid softener.
– Clean the electrodes in the liquid softener
tank.
•••••
If warning light for detergent illuminates
– Refill with detergent.
•••••
Indicator light for incorrect motor rotation
illuminates
– See chapter 4.7.
7.3 The appliance does not come up to
pressure
•••••
Fill the detergent tank or set the metering
valve to zero.
•••••
Vent the appliance (see Operation, chap. 5).
•••••
Clean strainer in water inlet on both float
tanks.
•••••
Check the water intake volume (see technical
data, chap. 3).
•••••
Check all the supply lines to the pump for
leaks and blockages.
7.4 The pump is knocking
•••••
Check all the supply lines to the pump, also
the detergent system, for leaks and blockages.
•••••
Vent the appliance (see Operation, chap. 5).
7.5 Detergent is not being drawn in
•••••
Clean the detergent suction hose and filter.
•••••
Clean the metering valve for cleaning agent.
•••••
Clean the non-return valve on the pump head
and the connection for the detergent suction
hose.
•••••
Check all the detergent hoses and connections
for leaks.
•••••
Check whether the detergent solenoid valves
have opened.
7.6 Burner does not ignite
•••••
The ignition sparks can be observed through
the inspection window in the burner cover.
The appliance has a continuous ignition., i.e.
even when operating with cold water an
ignition spark must be visible. Clean, adjust
or replace the ignition electrodes as required.
– Fill the fuel tank.
– Check that the fuel pump and the fuel
solenoid valve function correctly.
– Clean the strainer in the low-water safety
device.
– Change the fuel filter.
– Clean the sensor for the electronic flame
monitor.
7.7 The temperature is not reached
when operating with hot water/steam
•••••
Set the thermostat higher.
•••••
Reduce the operating pressure and the flow
rate.